Carrier 38MARBQ12AA1 Service Manual page 98

PCB Board 8
Procedure
1) Loosen the hooks (4 ) then open
the electronic control box cover.
2) Disconnect the outdoor DC fan
connector from the electronic
control board.
3) Remove the compressor connector.
4) Pull out the two blue wires connected
to the 4-way valve.
5) Remove the condenser connectors
coil temp. sensor(T3),outdoor
ambient temp. sensor(T4) and
discharge temp. sensor(TP).
6) Disconnect the electronic expansion
valve wire.
7) Disconnect the communication
wire indoor PCB.
8) Disconnect the PFC inductor.
9) Remove the electronic control box.
98
Illustration
Specifications subject to change without notice. SG-38MARB-01